Filled-sack-sewing machine.



A; .w. TIMEWELL;

-FILLED SACK SEWING MACHINE.

- APPLICATION FILED OCT. 30. 1911., 1, 175,571. Patented Mar. 14,1916.-

3 SHEETSSHEET I.

THE COLUMBIA PLANOGRAPH 1:0., WASHINGTON, D. C-

A. 'W. TIMEWELL.

- FILLED SACK SEWING MACHINE.

A'PPLICATION FILED OCT. 30. 1911. Patented Mar. 14, 1916.

3 SHEETS-z-SHEET 2.

l I I l I I l l I 1 l l l l l l l I I |I| I I v6 11, 207':

TH? COLUMBIA PLANOCRAPH ,COI, -IASH1NGTDN, D. C-

ll/pizzas? ea:

A. W. TIMEWELL.

FILLED SACK SEWING MACHINE.

APPLICATION FILED OCT. 30. 1911.

1,175,571. Patented Mar. 14, 1916.:

3 SHEETS-SHEET 3.

lid

. view of the sewing machine.

ARTHUR WILLIAM TIMEWELL, OF LONDON,

ENGLAND, ASSIGNOR TO THE SACK- FILLING- AND SEWING MACHINE SYNDICATE, LIlIMITED, OF LONDON, ENGLAND.

FILLED-SACK-SEWING MACHINE.

' Application filed October 30, 1911.

To all whom it may concern:

Be it known that I, ARTHUR WILLIAM Clrnnwrnn, a subject of the king of Great Britain, residing at Muscovy House, 6 Trinity Square, in the cityof London, Eng land, have invented certainnew and useful improvements in or Relating to Filled- Sack-Sewing Machines, of which the following is a specification.

This invention relates to improvements in machines for sewing or closing sacks or similar cceptacles after the said receptacles have been filled or charged with material and in which the sewing machine head is capable of adjustment relatively to the table or conveyer, and particularly to machines of the type in which the conveyer or traveling table is arranged at the floor level the object being to facilitate the manipulation and working of such machines, and to adapt the same for being more readily adjusted vertica ly to accord with the size of the work.

According to this invention the distance of separation of the sewing machine table and the traveling table or conveyer arranged at the floor level may be shortened'or lengthened, the arrangement being such that the adjustable bracket carrying the said table is provided with a tail piece or extension which is diverted laterally from the center line of the upper part and which carries one or more pulleys or sprocket wheelsengaging with,;;a corresponding number of endless bands or chains passing over a number of 'iulleys or sprocket wheels carried by the framing of the machine; said bands or chains serving to impart, motion tothe sewprovided on the machine. I

In order that the said invention may be clearly understood and readily carried into effect, I will proceed to describe the same with reference to the accompanying drawings, in which Figure 1 is an elevation of'the machlne showing the sewing machine andsack c0nveyer. Figs. 2 and 3 are respectively a rear.

and side elevation of the machine showing the main framing but with the sewing machine removed. Fig. 4 is a view in plan corresponding to'Fig. .1. Fig.6 is a detail detail view showing the thread feed or tensionin'g rollers and cutter. ,Fig. 7 is a plan showing the driving gear for said rollers.

Specification of Letters Patent.

b on the main framing so that said tall piece,

111g machine and the sack feeding chains Fig. 6 is a" Patented Mar. 1%, 1916. Serial No. 657,474.

The framing a of the machine is provided with a table. a which is mounted upon a bracket or slide a capable of vertical adjustment in the said framing, the bracket being guided in its movement by the vertical guides a a (Fig. 2). of effecting the movement may comprise an arrangement of chain and chain or sprocket wheels and counter-balance weights or equivalent means. Such an arrangement is shown in Fig. l, where a is one of a pair of chains each of which has its respective ends connected to the table a and the counterweight a. The chains pass over and engage with sprocket wheels a secured to the moved vertically along the framing of the machine. The bracket 64 carries fast and loose pulleys a whereby the mechanism mounted on the table a is actuated by a suitable belt a (Fig. 2), same passing over said pulleys a and the pulleys a carried by the framing of the machine. The bracket is also provided with sprocket or chain wheels Z) over which passes an endless chain 6. The bracket a is formed or provided with a-tail piece or extension 5 the lower part of which is diverted laterally from the center line of the upper part thereof. The tail piece 6 carries a pin or stud b on which is mounted a pulley and sprocket wheel intended respectively for the endless belt a and the endless chain Z). A similar pulley and sprocket wheel are mounted on a'stud a of the machine by passing the pulley and sprocket wheel mounted on the stud b on the machine, effect a shortening or lengtheningof the distance of separation of the table a and the conveyer 6 without any interruption of the operation of the parts.

' The chain 6 passes about a sprocket wheel 7) on a spindle or shaft 71 mounted on the aforesaid upper table a, about the sprocket wheel on the pin 6 at or about the end of the depending extension 6 of the bracket, thence about the sprocket wheel on the stud 72 and then about a sprocket wheel 0 on a lower shaft 0*, from this last mentioned sprocket wheel the chain 7) is carried to A convenient means engages with another bevel pinion b, Fig.

' or band i, so as to impart movement to the shaft 6 the motion of this latter shaft being in turn imparted to the shaft Z2 through the bevel gearing .7). An endless sack feeding chain cl passes over the shaft I), and when 7 said shaft is rotated the band (Z is operated and the mouth of the sack is carried between said band d and an adjacent endless band The driving belt a is, in a similar mannor to the endless chain Z), arranged to pass over the pulleys arranged on the aforesaid pins or studs 6 b" so that the raising and lowering of the table a may be readily effected. without said belting and the actuation of the sewing machine.

T he sack conveyer b is placed in a recess b formed below the floor level so that the upper portion of the endless band b of the conveyer is practically flush with the floor level b and in a convenient position for receiving the sacks to be operated upon..

Motion is imparted to the conveyer by means of the sprocket-Wheels h,'h (Fig.1).

In connection withthe sewing mechanism 0 which is carried by the adjustable table a itis proposed, acording to the present in vention, to place the looper c (Fig. 5) above the needle 0 and to actuate the same directly from the main spindle 0 of the sewing machine. The needle 0 is mounted in the bar is and'this latter is reciprocated by the eccentric strap is which receives its motion from an eccentric 70 carried by the main spindle of the sewing machine. By arranging the looper above the needle any undue weight or tension, as a result of the work in progress,

' v on the looper or other part of the mechanism. -Any known type of looper may be employed but it is'preferable to employ a type adapted to'form an ordinary chain stitch. In order to enable the sacks to be dealt with effectively by the sewing mechanism 0, whatever the speedor regularity of the feed of the filled sacks may be, it is proposed to provide means for preventing the thread slackening owing to the idle run- .ning of the machine. To'this end, horizontally revolving rollers 0 are arranged between the needle and the cutter 0 Fig. 6,

the sewing machine will always be in a state of tension while the machine is work-.

ing.;..The rollers a may be actuated from disturbing the tension of has no detrimental efiect' being sewn or closed. T he spindlescl which carry the rollers c are mounted the one on the table a and the other on a plate 6Z2 capable of movement in slots or guides 62. T he rollers 0* are actuated'by a belt 0 which is carried by grooved wheels 0 c and is driven from' the shaft (5* whereon the sprocket or tooth wheel f for the feed chain (Z is mounted. The roller c mounted on the plate d is so arranged as to be in yielding contact with the sack and the thread or chain constituted thereby, by any suitable means such as springs d or equivalent devices ca.- pable of affording a yielding efiect. Only one of the rollers 0*. is driven by the belt 0, the other roller being in frictional engagement with the former roller and being driven thereby. It will be understood that the operating lever 0 for the cutter c is connected with the latter in such a manner as to permit of the necessary relative movements.

mouths of filled sacks or similar receptacles,

the combination of a sewing-mechanism, a table for said mechanism, a counterweight for said table, chains connected to said table and counterweight, a shaft, sprocket-wheels on said shaft for engagingwith said chains, a. hand-wheel for rotating said sprocketwheels and adjusting the vertical position of the table, a sack-conveyer, a pair of coacting endless bands for feeding the mouths of the sacks, an adjustable bracket carrying the table, an extension on said bracket which is diverted laterally from the center line of the upper part thereof, a stud on said cX- tension, a pulley-wheel and a sprocket-wheel on said stud, a stud carried by the framing of the machine and arranged to the side of the stud on the extension, a pulley-wheel and a sprocket-wheel on said stud and a driving-belt and a driving-chain passing over said wheels and imparting motion to the sewing mechanism and sack-conveyor irrespective of the position of the table of 'for said table, chains connected to said table and counterweight, a shaft, sprocket-wheels a on said shaft for engaging with said chains, so that the thread or the chain made by a' handwheel for rotating said sprocketwheels and adjusting the vertical position of the table, a sack-conveyer, a pair of coacting endless bands for feeding the mouths of the sacks, gearing for actuating the feedmg device for the sack mouths, an ad ustable bracket carrying the table, an extension,

ing-chain passing over said wheels andimparting motion to the sewing mechanism and sack-conveyer irrespective of the posi-, tion of the table of the machine. I

In a machine for sewing or closing the mouths of filled sacks or similar receptacles, the combination of a sewing mechanism, a main spindle for said mechanism, a needle for said mechanism, a looper, a table for said mechanism, a counterweight for said table, chains connected to said table and counterweight, a shaft, sprocket-wheels on said shaft for engaging with said chains, a handwheel for rotating said sprocket-wheels and adjusting the vertical position of the table, a sack-conveyer, a pair of coacting endless bands for feeding the mouths of the sacks, gearing for actuating the coacting endless bands for feeding the sack mouths,

an adjustable bracket carrying the table, an I extension on said bracket which is diverted lateraily from the center line of the upper part thereof, a stud on said extension, a pulley-wheel and a sprocket-wheel on said stud, a stud carried by the framing of the machine and arranged to the side of the stud on the extension, a pulley-wheel and a sprocket-wheel on said stud and a driving belt and a driving-chain passing over said wheels and imparting motion to the sewing mechanism and sack-conveyer irrespective of the position of the table of the machine.

4. In a machine for sewing or closing the mouths of filled sacks or similar receptacles, the combination of a sewing mechanism, a main spindle for said mechanism, a needle for said mechanism, a looper arranged above the needle and actuated directly from the main spindle, a cutting device for the thread, a tensioning device comprising horizontally revolving rollers placed between the needle and the cutting device, a table, a counterweight for said table, chains connected to said table and counterweight, a shaft, sprocket-wheels on said shaft for engaging with said chains, a handwheel for rotating said sprocket-wheels and adjusting the vertical position of the table, a sack conveyer, a pair of coacting endless bands for feeding the mouths of the sacks, gearing for actuating the said coacting endless bands, an adjustable bracket carrying the table, an extension on said bracket which is diverted laterally from the center line of the upper part thereof, a stud on said extension, a pulley-wheel and a sprocketqvheel on said stud, a stud carried by the framing of the machine and arranged to the side of the stud on the extension, a pulley-wheel and a sprocket-wheel on said stud and a drivingbelt and a driving-chain passing over said wheels and imparting motion to the sewing mechanism and sack-conveyer irrespective of the position of the table of the machine. I

In testimony whereof I aflix my signature in presence of two witnesses.

ARTHUR w. TIMEWELL.

/Vitnesses WALTER J. SKERTEN, T. SELBY WARDLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

